Buckle.



N0. 866,217. 4 PATENTED SEPT. -17, 1907. G. o. PLUMMER.

UNITED STA' ITES GEORGE C. PLUMMER, OF CHICAGO, ILLINOIS, ASSIGNOR T0 THOMAS CHICAGO,

BUCKLE.

Specifica.tion of Letters Patent.

PATENT OFFICE.

J. HRUBY, OF ILLINOIS.

Patented Sept. 1'7, 1907.

Applioation fi1ed April 3, 1907. S0rial N0. 366,082.

T0 all whom it mag ccmcem: 0

130 it known that I, GEORGE O. PLUMMER, 2, citizen 0f tho United States, residing a1; Chicago, in the county 0f Cool: and State 01 I11inois, have invented 21 new 2111d useful Improvement in Buckles, 01"; which the following is 21 specification.

My invontion relates more particularly t0 improvements in scrz1p-buckles 0f the variety employing 21 relat'1v01y stationa1y f121111e-1110111b01 011d 21 sliding 11101111301 coperating therewith and ca11ying the gripping means E01" releasably fz1stening the free 011d 0f the strap to the buckle.

The object 01 my inventio'n is to improve upon buck1es 01 this type as hitherto constructed, -t0 the end 0f simplifying und cheapening the construction and at the san1e 1111110 adapting th0 buckle t0 hold With equal fir1nness, straps 01 different sizes.

Referring t0 the accompanying drawing; Figure 1 is 21 porspectivo viow 01 a strap equipped With 21 bucklc embodying my invention; Fig. 2, an enlarged section 1:aken 211 the lino 2 011 Fig. 1 und viewed in the direction 0J: tho 2111'0W; Fig'. 3, a 1'001 facc view 01 the buckle illus- 1212110(1 in Fig l.

My improved buok10 comprises 21 front 01 main f1ame 6 preferably 01 the rectangular and curved shape represent0d, and composed 01: ehd-sections 7 111d 8, an intermedi 21te secti0n 01 cross-bar 9, and side-sections 10 and 21 rear 1121111e 11 slidably confined 011 s211d main f1ame and coperating therewith J":01 the purpose hereinafter explained. The re211 frame 11, which is shorte1 than 11he franie 6, compriscs end-sections 12 and 13, side sections 14 210d an intermediate section 01 c1ossbar 15 provided with teeth 16, extending towz11d the bar 12 and inclinedly into the opening provided between th0 section 8 and c1oss-bm 9. Ea1's 17, provid0d 011 the sic1e sections 10 a1e bent t0 overlap the side-sections 01 the man frame and fo1m guides f01' holding the front and 1e211 fmmes flatwise together.

011 the back of the rear frz 1me 11 is 21 flange 18 p1eferab1y formed by bending in a direction away from the teeth 16, the meta1 0111; z1way t0 f01'm the opening between tl1e teeth and the section 12, t0 f01m a, flange substantially in the 101111 of 21 half circle in cross-section. This flange affo1ds 21 ronded bea1i1lg f01 13119 purpose hereinafte1 stated.

The buckle is attached 130 21 strap, such asfhat shown 21t 19, by looping 0110 end thereof aboufi the cross-bar 9 01 the front frame and end-section 13 01 the rear frame 21I1d then securing it to the adjacent portion of the strap, as by 21 rivet 20. By thus seculing the strap to the buckle the bar 9 and seqtion 13 are confined within the strapdoop so formed, thereby preventing the two frames from sepa1ating and at the same time permitting the frames t0 be 1n0ved one upon the other. Withth0 strap in posit1on t0 be fastened, it's free end may be releasably secured in the buckle by introducing it from the 1e211 thereof through the rogistering openings in the fmmes provided between the end-gecti0n 12 011d crossbar 15, and the end-section 8 und c1oss-bar 9, IGSPGC- tively, and then, if desi1ed, inse1tting it th1ough the 100p adjacenfi to the section 7 the1eby causing the teeth 110 engage the strap '1he free 011d 01 the strap thus fastened to the buckle is caused to be211 against 19110 fiange 18 With the effect of sliding the real frame 011 the front f12nne and consequently causing the teeth to firmly grip the strap. The 1ounded bealing 18 tends t0 reduce wem on the strap t0 the minimum. Moreover, this flange affo1ds 21 great leverageior moving the 1e211 frame which pern1its of the buckle being made.of sufficient dimensions t0 enable it 1;0 be used With straps 01 greatly Varying thicknesses.

It Will be noted that by c0nstructing the buckle in a manne1 to pe1n1it of the two frmnes being hold against separation, by the fixed end cf 19110 st1ap hngaging both f1ames, anal by providing gnides f01 the purpose described, the buckle-parts may be stamped f101n sheetmeta1 ar1 l readily assembled Without requi1ing an undue amount 0f 1211001, since the parts a1'e adapted 140 be stamped out in t11e form in Which they 211e finally as sembled.

What I claim 21s new und desire so secure by Letters Patent is:

A buckle comp1'ising', in combination, 21 front fmme 0011- sisting' of end-s0ctions and an intermediatc section secured together, 21 1'e111 frz1me mpvable 011 said f1'ont f121n10 und comprising end-sections and an intermediate secti0n secu1'ed together, gripping teeth 011 said 1'ear-frame intern1ediate section extending; into the space between said f1ont f1ame intel'mediate section und one 0f its end-sections, guides f01'med 0n the sides 013 said f1'011t f1'ame and ove1lapping tl1e sides of said 1'e211 frz1me to maintain the frames flatwise together, und a fiange ot 21 I'0rm app1"*ximating a half ci1'cle 111 cross section 011 tl1e cnd-section 0f said 1'ea1 f1am0 adjk1cent t0 said teetl1, f01111ed 0f the metal cut away t0 forrn the space between said lastna1ned end-section and the teeth, said f1alnes beihg comstl'ucted and axl'anged t0 permit one end 0t 21 st1ap t0 be looped over the into1'mediate scc'tion 0f the f1'0nt f1ame und the adjacent end-section 013 the rear-frame and the 0131101 end of the stl'ap t0 110 inse1ted botween said teeth and the adjacent end-sections of the f1ont und rear frames.

GEORGE C. PLUMMER. 

